Bugleweed

Uses

Parts Used & Where Grown

The leaves and flowers of this plant from the mint family are used medicinally. Both bugleweed and its European cousin, gypsywort (Lycopus europaeus), grow in very wet areas.

Traditional Use (May Not Be Supported by Scientific Studies)

The modern applications of bugleweed, unlike many medicinal plants, do not match its traditional use. Historically, bugleweed and related species were used to treat coughs and as a sedative.1 Today, the main use of this herb is for treating mild hyperthyroidism.

How It Works

Botanical names:

Lycopus virginicus

How It Works

Lithospermic acid and other organic acids are believed to be responsible for bugleweed's activity. These acids decrease levels of several hormones in the body, particularly thyroid-stimulating hormones2 and the thyroid hormone thyroxine (T4).3 Bugleweed inhibits the binding of antibodies to the thyroid gland.4 These antibodies can cause the most common form of hyperthyroidism, Graves' disease. All these actions may help explain bugleweed's benefit in people with mildly overactive thyroids.

How to Use It

The German Commission E monograph recommends 1-2 grams of the whole herb per day.5 Intake of tincture should be limited to 1-2 ml three times a day. Bugleweed is often combined with other herbs used to treat mildly overactive thyroid function, including lemon balm(Melissa officinalis) and gromwell (Lithospermum ruderale).

Interactions

Botanical names:

Lycopus virginicus

Interactions with Supplements, Foods, & Other Compounds

At the time of writing, there were no well-known supplement or food interactions with this supplement.

Replenish Depleted Nutrients

Reduce Side Effects

Support Medicine

Reduces Effectiveness

Potential Negative Interaction

Bugleweed(Lycopus virginicus, Lycopus europaeus) and lemon balm(Melissa officinalis) may interfere with the action of thyroid hormones. Check with your doctor before taking these herbs with thyroid hormones.

Bugleweed(Lycopus virginicus, Lycopus europaeus) and lemon balm(Melissa officinalis) may interfere with the action of thyroid hormones. Check with your doctor before taking these herbs with thyroid hormones.

Bugleweed(Lycopus virginicus, Lycopus europaeus) and lemon balm(Melissa officinalis) may interfere with the action of thyroid hormones. Check with your doctor before taking these herbs with thyroid hormones.

Bugleweed(Lycopus virginicus, Lycopus europaeus) and lemon balm(Melissa officinalis) may interfere with the action of thyroid hormones. Check with your doctor before taking these herbs with thyroid hormones.

Explanation Required

none

The Drug-Nutrient Interactions table may not include every possible interaction. Taking medicines with meals, on an empty stomach, or with alcohol may influence their effects. For details, refer to the manufacturers' package information as these are not covered in this table. If you take medications, always discuss the potential risks and benefits of adding a supplement with your doctor or pharmacist.

Side Effects

Botanical names:

Lycopus virginicus

Side Effects

Excessive intake of bugleweed by people with thyroid disease or use by healthy people may cause a potentially harmful decrease in thyroid function. Thyroid disease is dangerous and should only be treated under the supervision of a healthcare professional. However, long-term use of bugleweed is considered safe for people with hyperthyroidism.6 Bugleweed should not be taken by people with hypothyroidism. Bugleweed should also not be used during pregnancy and breast-feeding.7

The information presented by Healthnotes is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires December 2017.

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